SC05-11SRWA 7-Segment LED Display Equivalent & Substitute Parts

Part Overview

The SC05-11SRWA is a single-character red 7-segment LED display manufactured by Kingbright, featuring a 0.50-inch digit height in an 18-DIP package configuration. This display module operates as a common cathode device with a typical forward voltage of 1.85V and test current of 20mA. The product is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity.

Substiute Parts

SC05-11SRWA

KingbrightIn Stock: 1083SC05-11SRWA Datasheet

Current PartRFQ

SC05-11SURKWA

KingbrightIn Stock: 1016SC05-11SURKWA Datasheet

MFR RecommendedRFQ

LDS-C504RI

Lumex Opto/Components Inc.In Stock: 1025LDS-C504RI Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC05-11SRWA is determined by the following critical parameters that must remain consistent or compatible:

Mandatory Compatibility Parameters:

• Display Type: 7-Segment configuration
• Number of Characters: Single character (1)
• Digit/Alpha Size: 0.50" (12.70mm)
• Common Pin Configuration: Common Cathode
• Color: Red
• Physical Dimensions: 0.748" H x 0.500" W x 0.315" D (19.00mm x 12.70mm x 8.00mm)

Allowable Variation Parameters:

• Voltage - Forward (Vf): Typical values between 1.85V and 2.0V are acceptable within standard LED operating tolerances
• Current - Test: Values between 10mA and 20mA are acceptable depending on brightness requirements
• Millicandela Rating: Brightness variations are acceptable based on application requirements
• Wavelength - Peak: Red spectrum variations (635nm to 660nm) are acceptable
• Package / Case: DIP package configurations with 10-DIP or 18-DIP are acceptable with circuit board layout considerations
• Power Dissipation (Max): Values up to 105mW are acceptable

Substitute parts must maintain common cathode configuration, identical physical dimensions, and 7-segment display architecture to ensure functional and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

SC05-11SURKWA (Kingbright Recommended Substitute)

The SC05-11SURKWA is the manufacturer-recommended equivalent for the obsolete SC05-11SRWA. Both components are manufactured by Kingbright and share identical physical dimensions, display architecture, and common cathode configuration. The SC05-11SURKWA maintains active product status and full ROHS3 compliance. The primary difference is the package configuration change from 18-DIP to 10-DIP, which requires circuit board layout modification. The forward voltage increases from 1.85V to 1.95V, and brightness increases to 69mcd. This substitute is suitable for direct functional replacement with PCB redesign considerations.

LDS-C504RI (Lumex Alternative)

The LDS-C504RI from Lumex Opto/Components Inc. provides an alternative 7-segment red display with identical physical dimensions and common cathode configuration. This component is active and ROHS3 compliant. The LDS-C504RI operates at 2V forward voltage with reduced test current of 10mA, resulting in lower power dissipation characteristics. The millicandela rating of 3.9mcd is significantly lower than the main part, making this substitute suitable only for applications where reduced brightness is acceptable. The 10-DIP package requires circuit board layout modification identical to the SC05-11SURKWA.

Frequently Asked Questions (FAQ)

Q: Can the SC05-11SURKWA be used as a direct replacement for the SC05-11SRWA without circuit board modifications?

A: No. While both components share identical physical dimensions and electrical characteristics, the package configuration differs: SC05-11SRWA uses 18-DIP (0.500", 12.70mm) while SC05-11SURKWA uses 10-DIP (0.600", 15.24mm). Circuit board layout modifications are required to accommodate the different pin spacing.

Q: What is the primary difference between the SC05-11SURKWA and LDS-C504RI substitutes?

A: Both maintain identical physical dimensions and common cathode configuration. The SC05-11SURKWA operates at 1.95V with 20mA test current and 69mcd brightness. The LDS-C504RI operates at 2V with 10mA test current and 3.9mcd brightness. The SC05-11SURKWA provides higher brightness output, while the LDS-C504RI consumes less current.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The SC05-11SURKWA and LDS-C504RI are both ROHS3 compliant with MSL rating of 1 (Unlimited), matching the compliance status of the original SC05-11SRWA.

Q: What forward voltage range is acceptable for substitution?

A: The main part operates at 1.85V typical. Substitute parts with forward voltages between 1.85V and 2.0V are acceptable within standard LED operating tolerances. Both recommended substitutes fall within this range at 1.95V and 2V respectively.

Q: Can the LDS-C504RI be used in applications requiring high brightness output?

A: No. The LDS-C504RI has a millicandela rating of 3.9mcd compared to the main part's 34mcd and the SC05-11SURKWA's 69mcd. The LDS-C504RI is suitable only for applications where reduced brightness is acceptable or where lower current consumption is prioritized.

Q: What are the moisture sensitivity considerations for these components?

A: All three components have MSL rating of 1 (Unlimited), indicating no moisture sensitivity limitations. Standard handling and storage procedures apply without special moisture control requirements.

Q: How do the wavelength specifications differ among the three parts?

A: The SC05-11SRWA operates at 660nm peak wavelength (deep red). The SC05-11SURKWA operates at 645nm (red). The LDS-C504RI operates at 635nm (orange-red). All wavelengths fall within the red spectrum and are visually compatible for most applications.